2x+3y=5 , 2x+7y=9 solve this equation with elemination method
Answers
Answered by
1
Answer:
(1) 1
(2) 1
Step-by-step explanation:
(1) 2x + 3y = 5
=>5xy = 5
=>xy = 1
(2) 2x+7y = 9
=> 9xy = 9
=> xy = 9
Answered by
1
2x+3y=5
-2x-7y=-9
(while eliminating terms symbols changes)
-4y=-4(minus,minus cancel)
y=1(Substitute y in equation (i)
2x+3y=5
2x+3(1)=5
2x+3=5
2x=5-3
2x=2
x=1
SO X=1,Y=1
is it clear
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